Originally commissioned in 1916 for use in the London Transport system, Edward Johnston's typeface immediately became an icon in graphic design and typography. Commissioned by first Chief Executive of London Transport Frank Pick to create a typeface belonging unmistakably to the twentieth century, Johnston's design was intended to be distinctly legible and, most importantly, functional. The true testament to Johnston's legacy of design is its continued modern usage and the scores of imitations which developed from Johnston's work. Johnston's original typeface became the model and inspiration for such modern sans-serif typefaces as Futura and Gill Sans. P22 Underground Pro expands on the historical design by Edward Johnston, licensed exclusively to P22 from the London Transport Museum.